Improvement in pencil-cases



` 'dinard gaat JOHN H. RAUoHyo'r NEWYoRK, N. Y.

L`ette'rs Patent No. 91,665, dated June 22, 1869.

IMPOVEMEN T -N l PENCIL-CASES.

The Schedule referred to in these Letters Patent and making part of thegame.

To all whom it may concern.-

Beit known that 1, JOHN H. RAUCH, -of New York, in the county of NewYork, and State of New York,have invented anew and useful Improvement inPen and Pencil-Cases; andrI do hereby declare that the following is afull, clear, and exact description thereof, which will enableothersskilled in the art to make and use the same, reference being had to theaccompanying drawings, formingpart of this specificat-ion.

This invention relates to improvements in telescopic pencil andpen-cases, such as are made for being materially shortened forconvenience in carrying in the pocket,iutended to provide an arrangementwhereby the'extensiou and contraction of the pencil may be efltestedwith fewer tubes and less friction, and the fiu- -ished pencil may bemade of small diameter, for convenience in carrying in the pocket andhandling.

Figure 1 represents a side view, partly, broken, of aA pencilconstructed accordngto my improvements, the outer cases being removed jand Figure 2 represents a. transverse section of the same, taken ou thelines x x.

Figures 3, 4, and 5, are detached views, respectively, of the outertube, the pencil, and the spirally-slotted tube.

Similar letters et reference indicate corresponding parts.

A represents the pencil-stock sliding within a tube,

B, having two spiral slots C D, commencing at or near the centre, andrunning in opposite directions to the ends. The said tube B slideswithin another tube, E, fixed to a stock, F, or outside balrel, in amanner to rotate thereon, but not to slide. It is provided lwith astraight groove, G, running nearly from end to end; and atA the endthrough which the tube slides, it is provided with a stud, H, takinginto the groove of the tube B.

The stock A of the pencil is provided with a stud, v

I, working inthe other spiral groove D, of the tube B, and also in thestraight groove G of the rotating Atube E.

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` v The tube B is provided with a cap, K, atthe end,

whereon an outer section of casing-tube is secured, to work withinanother larger similar section, fixed to and a part ofthe stock F; butthis is a common arrangement, and no part of my invention, with theexception that my invention enables me to make these cases of a smallerdiameter than-has been heretofore done with pencils having the samecapacity of extension and strength. g

When the fingers are applied to the cap-K for extending the pencil, thefixed stud H, in the tube E, working in the spiral groove C, will causethe said tube E to rotate to the left, and this rotation produces anaccelerated actionrupon the pencil-stock A', through the stud I, in thesame direction, whereby the said stock is moved twice 4the distance thatthe tube B moves. place.

I am aware that it is not new to produce this accelerated rotary andsliding movement of the pencilstock by means of a system of sliding and`rotating tubes, and I do not, therefore, claim thisfeature broadly. t

But my invention consists in the herein-described arrangement, wherebythe same is accomplished by the employment of only two tubes, instead ofthree, as heretofore employed.

Having thus described my invention,

I claim as new, and desire to s'eeure by Letters Patent- The tube B,having the right and left spira-l slots O D, in combination with thetube E, having the straight groove G and fixed stud H, the rotatingstock -F,-and the pencil A, having4 the stud I, all arranged tooperatein the manner described, for the purpose specified. i

The above specification of my invention signed by me, this 17th day ofFebruary, 1869. VJOHN H. RAUCH.

Witnesses: I

FRANCIS BLocKLEY, ALEX. F. ROBERTS.

When forced inward, a contrary action takes

